Senior Backend Engineer (Python/Kotlin)

MAS Global Consulting

📍 medellín, valle de aburrá, antioquia, Colombia

Full-time Other-General Posted June 09, 2026

Job Description

Who You Are

You are a Senior Backend Engineer who takes pride in writing clean, production‑grade code and thinking beyond the ticket. You thrive in cross‑functional environments, communicate with clarity across engineering, product, and analytics, and bring the architectural instincts to design systems that scale. Whether in Python or Kotlin, you deliver with consistency, hold a high bar for quality, and are energized by the complexity of financial products and card platforms.

What You'll Do

  • Write high‑quality backend code in Python or Kotlin to power a card product for a leading US fintech company, upholding strong engineering standards across every layer.
  • Design and contribute to system architecture, taking ownership from concept through implementation.
  • Build robust APIs and data models that operate within service‑oriented and event‑driven architectures.
  • Collaborate cross‑functionally with Product, Analyt...